The center says the danger is "high" (4 on a scale of 5) near treeline and above treeline. The danger is "considerable" — a 3 — below timberline.

"Very strong westerly winds drifted snow near and above treeline," the center said in its warning. "Avalanche conditions are very dangerous.Natural and human triggered avalanches are likely.Some avalanches may be very large and destructive.Backcountry travelers are advised to stay well clear of all avalanche terrain."